Tell you what Khazul - may be a little off the original topic of the samples of 80xx, but you can make very huge supersaw-ish sounds on the V-Synth, by sampling and resampling.
For fun I decided to make a Nordsupersaw and CS10 supersaw and they both turned out far better than the V-Synth's analogue modeled supersaw OSC.
As far as the filters go, I feel you need to use both Cosm sections to build a good filter sound. I usualy run the duel filter on one and have a simple one on the other. The filters fall flat on the V-Synth in comparison with the Virus specially, but if you layer them and really play with them you can get very warm sounding filters working.
Also another way to get that supersaw like detuned motion with samples is the use stereo pitch shifter effect.
You may not have wanted to read any of this, but I thought I'd throw it in just in case.
